When you select a particular window to record with the screen + cam mode, we record only the window and not the entire screen. For this reason, the camera with your face is not in the final recording.

The way to solve this is to select to record the Screen instead of Window

The problem of the camera bubble : This can happen in two cases: when you record the entire screen and switch from the browser window where you started the recording to another one, or when you record an application other than Chrome, where camera recording isn't available.

If you record using the extension from the same browser window you wish to record, you should see the camera with your face in the final recording.